361644241 has 4 divisors (see below), whose sum is σ = 413307712. Its totient is φ = 309980772.

The previous prime is 361644221. The next prime is 361644277. The reversal of 361644241 is 142446163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142446163 = 61 ⋅2335183.

It is a cyclic number.

It is not a de Polignac number, because 361644241 - 2⁵ = 361644209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361644221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25831725 + ... + 25831738.

It is an arithmetic number, because the mean of its divisors is an integer number (103326928).

Almost surely, 2^361644241 is an apocalyptic number.

It is an amenable number.

361644241 is a deficient number, since it is larger than the sum of its proper divisors (51663471).

361644241 is an equidigital number, since it uses as much as digits as its factorization.

361644241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51663470.

The product of its digits is 13824, while the sum is 31.

The square root of 361644241 is about 19016.9461533654. The cubic root of 361644241 is about 712.4600513562.

The spelling of 361644241 in words is "three hundred sixty-one million, six hundred forty-four thousand, two hundred forty-one".